Home / 220,107.39-303,743.97-129,473.25

Finding the Fourth Proportional to 220,107.39, 303,743.97 and 129,473.25

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Solution

The fourth proportional to 220,107.39, 303,743.97 and 129,473.25 is: 178,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,107.39 : 303,743.97 = 129,473.25 : x
  2. Step 2: Convert to fraction form
    220,107.39/303,743.97 = 129,473.25/x
  3. Step 3: Cross multiply
    220,107.39x = 303,743.97 × 129,473.25
  4. Step 4: Simplify right side
    220,107.39x = 39,326,718,963.80
  5. Step 5: Solve for x
    x = 39,326,718,963.80/220,107.39
  6. Step 6: Final answer
    x = 178,670.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.